./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:38:34,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:38:34,303 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2023-11-28 20:38:34,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:38:34,309 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:38:34,336 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:38:34,336 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:38:34,337 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:38:34,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:38:34,338 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:38:34,339 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:38:34,339 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:38:34,340 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:38:34,341 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:38:34,341 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:38:34,342 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:38:34,342 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:38:34,343 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:38:34,343 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:38:34,344 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:38:34,345 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:38:34,345 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:38:34,346 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 20:38:34,346 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:38:34,347 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:38:34,347 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:38:34,348 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:38:34,348 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:38:34,348 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:38:34,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:38:34,349 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:38:34,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:38:34,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:38:34,350 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:38:34,350 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:38:34,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-28 20:38:34,351 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-28 20:38:34,351 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:38:34,351 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:38:34,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:38:34,352 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:38:34,352 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2023-11-28 20:38:34,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:38:34,597 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:38:34,600 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:38:34,601 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:38:34,601 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:38:34,603 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-28 20:38:37,330 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:38:37,612 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:38:37,612 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-28 20:38:37,631 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data/d43ba32a8/25389de46d1a4d79ac67a87107ba21b8/FLAG4d73a96ca [2023-11-28 20:38:37,647 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data/d43ba32a8/25389de46d1a4d79ac67a87107ba21b8 [2023-11-28 20:38:37,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:38:37,651 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:38:37,652 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:38:37,653 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:38:37,658 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:38:37,659 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:38:37" (1/1) ... [2023-11-28 20:38:37,660 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20945c5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:37, skipping insertion in model container [2023-11-28 20:38:37,660 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:38:37" (1/1) ... [2023-11-28 20:38:37,734 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:38:38,232 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:38:38,242 ERROR L324 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2023-11-28 20:38:38,243 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@712997f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:38, skipping insertion in model container [2023-11-28 20:38:38,243 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:38:38,244 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2023-11-28 20:38:38,245 INFO L158 Benchmark]: Toolchain (without parser) took 593.64ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 108.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-28 20:38:38,246 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory was 78.5MB in the beginning and 78.4MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-28 20:38:38,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 591.13ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 108.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2023-11-28 20:38:38,248 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 136.3MB. Free memory was 78.5MB in the beginning and 78.4MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 591.13ms. Allocated memory is still 172.0MB. Free memory was 131.3MB in the beginning and 108.3MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 737]: Unsupported Syntax Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-28 20:38:39,991 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-28 20:38:40,058 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2023-11-28 20:38:40,070 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-28 20:38:40,071 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-28 20:38:40,098 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-28 20:38:40,099 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-28 20:38:40,099 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-28 20:38:40,100 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-28 20:38:40,101 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-28 20:38:40,101 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-28 20:38:40,102 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-28 20:38:40,103 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-28 20:38:40,103 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-28 20:38:40,104 INFO L153 SettingsManager]: * Use SBE=true [2023-11-28 20:38:40,104 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-28 20:38:40,105 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-28 20:38:40,106 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-28 20:38:40,106 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-28 20:38:40,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-28 20:38:40,107 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2023-11-28 20:38:40,108 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2023-11-28 20:38:40,109 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2023-11-28 20:38:40,109 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-28 20:38:40,109 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2023-11-28 20:38:40,110 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-28 20:38:40,110 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-28 20:38:40,111 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-28 20:38:40,111 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-28 20:38:40,111 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-28 20:38:40,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-28 20:38:40,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-28 20:38:40,112 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-28 20:38:40,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-28 20:38:40,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:38:40,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-28 20:38:40,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-28 20:38:40,114 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-28 20:38:40,114 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-28 20:38:40,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-28 20:38:40,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-28 20:38:40,115 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-28 20:38:40,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-28 20:38:40,115 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2023-11-28 20:38:40,115 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0f3b69410d84404822a26401b92e2c10c65259dbe30a6f843124f3a9a51940ad [2023-11-28 20:38:40,394 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-28 20:38:40,413 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-28 20:38:40,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-28 20:38:40,417 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-28 20:38:40,417 INFO L274 PluginConnector]: CDTParser initialized [2023-11-28 20:38:40,418 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-28 20:38:43,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-28 20:38:43,508 INFO L384 CDTParser]: Found 1 translation units. [2023-11-28 20:38:43,509 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/sv-benchmarks/c/uthash-2.0.2/uthash_BER_test5-2.i [2023-11-28 20:38:43,526 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data/a32df202a/d8015ac6178d443c851877ff888ccedf/FLAG0dc0c8302 [2023-11-28 20:38:43,539 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/data/a32df202a/d8015ac6178d443c851877ff888ccedf [2023-11-28 20:38:43,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-28 20:38:43,543 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-28 20:38:43,544 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-28 20:38:43,544 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-28 20:38:43,549 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-28 20:38:43,550 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:38:43" (1/1) ... [2023-11-28 20:38:43,551 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42bda515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:43, skipping insertion in model container [2023-11-28 20:38:43,552 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:38:43" (1/1) ... [2023-11-28 20:38:43,633 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:38:44,235 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:38:44,249 INFO L199 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2023-11-28 20:38:44,266 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-28 20:38:44,381 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:38:44,386 INFO L202 MainTranslator]: Completed pre-run [2023-11-28 20:38:44,486 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-28 20:38:44,517 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-28 20:38:44,525 INFO L206 MainTranslator]: Completed translation [2023-11-28 20:38:44,525 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44 WrapperNode [2023-11-28 20:38:44,526 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-28 20:38:44,527 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-28 20:38:44,527 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-28 20:38:44,527 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-28 20:38:44,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,581 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,652 INFO L138 Inliner]: procedures = 180, calls = 441, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1585 [2023-11-28 20:38:44,653 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-28 20:38:44,653 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-28 20:38:44,654 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-28 20:38:44,654 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-28 20:38:44,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,681 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,836 INFO L175 MemorySlicer]: Split 407 memory accesses to 5 slices as follows [2, 24, 5, 5, 371]. 91 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 93 writes are split as follows [0, 1, 1, 1, 90]. [2023-11-28 20:38:44,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,918 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,944 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-28 20:38:44,945 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-28 20:38:44,945 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-28 20:38:44,946 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-28 20:38:44,946 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (1/1) ... [2023-11-28 20:38:44,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-28 20:38:44,964 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-28 20:38:44,982 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-28 20:38:44,985 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-28 20:38:45,015 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-11-28 20:38:45,016 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-11-28 20:38:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#0 [2023-11-28 20:38:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#1 [2023-11-28 20:38:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#2 [2023-11-28 20:38:45,016 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#3 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1#4 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#1 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#2 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#3 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#4 [2023-11-28 20:38:45,017 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-28 20:38:45,018 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-28 20:38:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2023-11-28 20:38:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2023-11-28 20:38:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2023-11-28 20:38:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2023-11-28 20:38:45,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2023-11-28 20:38:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2023-11-28 20:38:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2023-11-28 20:38:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2023-11-28 20:38:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2023-11-28 20:38:45,019 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2023-11-28 20:38:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-28 20:38:45,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-28 20:38:45,020 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2023-11-28 20:38:45,021 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#1 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#2 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#3 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#4 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#1 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#2 [2023-11-28 20:38:45,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#3 [2023-11-28 20:38:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#4 [2023-11-28 20:38:45,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-28 20:38:45,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-28 20:38:45,278 INFO L241 CfgBuilder]: Building ICFG [2023-11-28 20:38:45,280 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-28 20:38:45,307 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-28 20:38:45,345 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-28 20:38:45,367 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-28 20:38:45,391 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-28 20:38:45,413 WARN L821 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2023-11-28 20:38:51,635 INFO L282 CfgBuilder]: Performing block encoding [2023-11-28 20:38:51,816 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-28 20:38:51,816 INFO L309 CfgBuilder]: Removed 92 assume(true) statements. [2023-11-28 20:38:51,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:38:51 BoogieIcfgContainer [2023-11-28 20:38:51,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-28 20:38:51,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-28 20:38:51,820 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-28 20:38:51,822 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-28 20:38:51,822 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 08:38:43" (1/3) ... [2023-11-28 20:38:51,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433872f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:38:51, skipping insertion in model container [2023-11-28 20:38:51,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:38:44" (2/3) ... [2023-11-28 20:38:51,823 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433872f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 08:38:51, skipping insertion in model container [2023-11-28 20:38:51,823 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:38:51" (3/3) ... [2023-11-28 20:38:51,825 INFO L112 eAbstractionObserver]: Analyzing ICFG uthash_BER_test5-2.i [2023-11-28 20:38:51,839 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-28 20:38:51,840 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 833 error locations. [2023-11-28 20:38:51,929 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-28 20:38:51,963 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3d9c0d2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-28 20:38:51,964 INFO L358 AbstractCegarLoop]: Starting to check reachability of 833 error locations. [2023-11-28 20:38:51,975 INFO L276 IsEmpty]: Start isEmpty. Operand has 1507 states, 663 states have (on average 2.5279034690799396) internal successors, (1676), 1497 states have internal predecessors, (1676), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) [2023-11-28 20:38:51,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-28 20:38:51,984 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:51,984 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-28 20:38:51,985 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:38:51,993 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:51,993 INFO L85 PathProgramCache]: Analyzing trace with hash 79665205, now seen corresponding path program 1 times [2023-11-28 20:38:52,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:52,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1083112221] [2023-11-28 20:38:52,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:52,010 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:52,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:52,016 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:52,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2023-11-28 20:38:52,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:52,256 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-28 20:38:52,262 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:52,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:52,282 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:38:52,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:52,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1083112221] [2023-11-28 20:38:52,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1083112221] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:52,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:52,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:38:52,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644753356] [2023-11-28 20:38:52,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:52,291 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-28 20:38:52,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:52,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-28 20:38:52,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:38:52,325 INFO L87 Difference]: Start difference. First operand has 1507 states, 663 states have (on average 2.5279034690799396) internal successors, (1676), 1497 states have internal predecessors, (1676), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 9 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:53,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:53,303 INFO L93 Difference]: Finished difference Result 1487 states and 1580 transitions. [2023-11-28 20:38:53,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-28 20:38:53,306 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-28 20:38:53,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:53,324 INFO L225 Difference]: With dead ends: 1487 [2023-11-28 20:38:53,325 INFO L226 Difference]: Without dead ends: 1486 [2023-11-28 20:38:53,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-28 20:38:53,330 INFO L413 NwaCegarLoop]: 1418 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:53,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1418 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-28 20:38:53,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2023-11-28 20:38:53,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1486. [2023-11-28 20:38:53,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1486 states, 654 states have (on average 2.3776758409785934) internal successors, (1555), 1476 states have internal predecessors, (1555), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:38:53,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1486 states to 1486 states and 1579 transitions. [2023-11-28 20:38:53,444 INFO L78 Accepts]: Start accepts. Automaton has 1486 states and 1579 transitions. Word has length 4 [2023-11-28 20:38:53,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:53,444 INFO L495 AbstractCegarLoop]: Abstraction has 1486 states and 1579 transitions. [2023-11-28 20:38:53,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:53,444 INFO L276 IsEmpty]: Start isEmpty. Operand 1486 states and 1579 transitions. [2023-11-28 20:38:53,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-28 20:38:53,445 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:53,445 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-28 20:38:53,448 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2023-11-28 20:38:53,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:53,646 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:38:53,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:53,647 INFO L85 PathProgramCache]: Analyzing trace with hash 79665267, now seen corresponding path program 1 times [2023-11-28 20:38:53,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:53,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1106400716] [2023-11-28 20:38:53,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:53,648 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:53,648 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:53,649 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:53,651 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2023-11-28 20:38:53,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:53,800 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:38:53,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:53,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:38:53,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:53,857 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:38:53,857 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:53,858 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1106400716] [2023-11-28 20:38:53,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1106400716] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:53,858 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:53,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:38:53,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600921596] [2023-11-28 20:38:53,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:53,860 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:38:53,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:38:53,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:38:53,861 INFO L87 Difference]: Start difference. First operand 1486 states and 1579 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:56,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:38:56,904 INFO L93 Difference]: Finished difference Result 1715 states and 1852 transitions. [2023-11-28 20:38:56,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:38:56,905 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-28 20:38:56,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:38:56,913 INFO L225 Difference]: With dead ends: 1715 [2023-11-28 20:38:56,913 INFO L226 Difference]: Without dead ends: 1715 [2023-11-28 20:38:56,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:38:56,915 INFO L413 NwaCegarLoop]: 957 mSDtfsCounter, 1235 mSDsluCounter, 322 mSDsCounter, 0 mSdLazyCounter, 1030 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1246 SdHoareTripleChecker+Valid, 1279 SdHoareTripleChecker+Invalid, 1132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 1030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:38:56,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1246 Valid, 1279 Invalid, 1132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 1030 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2023-11-28 20:38:56,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2023-11-28 20:38:56,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1461. [2023-11-28 20:38:56,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 720 states have (on average 2.2069444444444444) internal successors, (1589), 1451 states have internal predecessors, (1589), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:38:56,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 1613 transitions. [2023-11-28 20:38:56,953 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 1613 transitions. Word has length 4 [2023-11-28 20:38:56,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:38:56,953 INFO L495 AbstractCegarLoop]: Abstraction has 1461 states and 1613 transitions. [2023-11-28 20:38:56,953 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:38:56,953 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 1613 transitions. [2023-11-28 20:38:56,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2023-11-28 20:38:56,953 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:38:56,954 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2023-11-28 20:38:56,955 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2023-11-28 20:38:57,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:57,154 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:38:57,155 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:38:57,155 INFO L85 PathProgramCache]: Analyzing trace with hash 79665268, now seen corresponding path program 1 times [2023-11-28 20:38:57,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:38:57,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [371426209] [2023-11-28 20:38:57,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:38:57,156 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:38:57,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:38:57,157 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:38:57,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2023-11-28 20:38:57,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:38:57,334 INFO L262 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:38:57,336 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:38:57,345 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:38:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:38:57,369 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:38:57,369 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:38:57,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [371426209] [2023-11-28 20:38:57,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [371426209] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:38:57,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:38:57,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:38:57,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24889754] [2023-11-28 20:38:57,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:38:57,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:38:57,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:38:57,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:38:57,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:38:57,372 INFO L87 Difference]: Start difference. First operand 1461 states and 1613 transitions. Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:01,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:01,962 INFO L93 Difference]: Finished difference Result 1930 states and 2133 transitions. [2023-11-28 20:39:01,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:39:01,963 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2023-11-28 20:39:01,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:01,972 INFO L225 Difference]: With dead ends: 1930 [2023-11-28 20:39:01,973 INFO L226 Difference]: Without dead ends: 1930 [2023-11-28 20:39:01,973 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:01,974 INFO L413 NwaCegarLoop]: 1285 mSDtfsCounter, 673 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 1169 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1864 SdHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 1169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:01,975 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1864 Invalid, 1192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 1169 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-28 20:39:01,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1930 states. [2023-11-28 20:39:02,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1930 to 1584. [2023-11-28 20:39:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 853 states have (on average 2.182883939038687) internal successors, (1862), 1574 states have internal predecessors, (1862), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:02,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1886 transitions. [2023-11-28 20:39:02,010 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1886 transitions. Word has length 4 [2023-11-28 20:39:02,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:02,010 INFO L495 AbstractCegarLoop]: Abstraction has 1584 states and 1886 transitions. [2023-11-28 20:39:02,011 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:02,011 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1886 transitions. [2023-11-28 20:39:02,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2023-11-28 20:39:02,011 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:02,011 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2023-11-28 20:39:02,013 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2023-11-28 20:39:02,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:02,212 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr640REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:02,212 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:02,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1823652708, now seen corresponding path program 1 times [2023-11-28 20:39:02,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:02,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1851501511] [2023-11-28 20:39:02,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:02,213 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:02,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:02,215 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:02,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2023-11-28 20:39:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:02,363 INFO L262 TraceCheckSpWp]: Trace formula consists of 30 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:39:02,365 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:02,374 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:02,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:02,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1851501511] [2023-11-28 20:39:02,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1851501511] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:02,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:02,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:39:02,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796715625] [2023-11-28 20:39:02,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:02,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:39:02,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:02,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:39:02,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:02,377 INFO L87 Difference]: Start difference. First operand 1584 states and 1886 transitions. Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:04,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:04,175 INFO L93 Difference]: Finished difference Result 2969 states and 3562 transitions. [2023-11-28 20:39:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:39:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2023-11-28 20:39:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:04,189 INFO L225 Difference]: With dead ends: 2969 [2023-11-28 20:39:04,189 INFO L226 Difference]: Without dead ends: 2969 [2023-11-28 20:39:04,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:04,190 INFO L413 NwaCegarLoop]: 1495 mSDtfsCounter, 1243 mSDsluCounter, 1307 mSDsCounter, 0 mSdLazyCounter, 358 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1254 SdHoareTripleChecker+Valid, 2802 SdHoareTripleChecker+Invalid, 360 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 358 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:04,191 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1254 Valid, 2802 Invalid, 360 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 358 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-11-28 20:39:04,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2969 states. [2023-11-28 20:39:04,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2969 to 1586. [2023-11-28 20:39:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1586 states, 855 states have (on average 2.1801169590643275) internal successors, (1864), 1576 states have internal predecessors, (1864), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:04,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1586 states to 1586 states and 1888 transitions. [2023-11-28 20:39:04,247 INFO L78 Accepts]: Start accepts. Automaton has 1586 states and 1888 transitions. Word has length 5 [2023-11-28 20:39:04,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:04,248 INFO L495 AbstractCegarLoop]: Abstraction has 1586 states and 1888 transitions. [2023-11-28 20:39:04,248 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:04,248 INFO L276 IsEmpty]: Start isEmpty. Operand 1586 states and 1888 transitions. [2023-11-28 20:39:04,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2023-11-28 20:39:04,249 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:04,249 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:04,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2023-11-28 20:39:04,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:04,451 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:04,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:04,452 INFO L85 PathProgramCache]: Analyzing trace with hash -32935171, now seen corresponding path program 1 times [2023-11-28 20:39:04,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:04,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [753282135] [2023-11-28 20:39:04,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:04,452 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:04,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:04,454 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:04,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2023-11-28 20:39:04,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:04,634 INFO L262 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-28 20:39:04,637 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:04,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:04,646 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:04,646 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:04,646 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [753282135] [2023-11-28 20:39:04,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [753282135] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:04,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:04,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:39:04,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67204225] [2023-11-28 20:39:04,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:04,647 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:39:04,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:04,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:39:04,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:04,648 INFO L87 Difference]: Start difference. First operand 1586 states and 1888 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:05,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:05,913 INFO L93 Difference]: Finished difference Result 1547 states and 1848 transitions. [2023-11-28 20:39:05,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:39:05,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2023-11-28 20:39:05,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:05,922 INFO L225 Difference]: With dead ends: 1547 [2023-11-28 20:39:05,922 INFO L226 Difference]: Without dead ends: 1547 [2023-11-28 20:39:05,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:05,923 INFO L413 NwaCegarLoop]: 1268 mSDtfsCounter, 70 mSDsluCounter, 1219 mSDsCounter, 0 mSdLazyCounter, 318 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 2487 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:05,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 2487 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 318 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2023-11-28 20:39:05,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1547 states. [2023-11-28 20:39:05,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1547 to 1547. [2023-11-28 20:39:05,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1547 states, 840 states have (on average 2.1714285714285713) internal successors, (1824), 1537 states have internal predecessors, (1824), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:05,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1547 states to 1547 states and 1848 transitions. [2023-11-28 20:39:05,952 INFO L78 Accepts]: Start accepts. Automaton has 1547 states and 1848 transitions. Word has length 10 [2023-11-28 20:39:05,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:05,952 INFO L495 AbstractCegarLoop]: Abstraction has 1547 states and 1848 transitions. [2023-11-28 20:39:05,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:05,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1547 states and 1848 transitions. [2023-11-28 20:39:05,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2023-11-28 20:39:05,952 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:05,953 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:05,956 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2023-11-28 20:39:06,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:06,153 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:06,153 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:06,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1585930985, now seen corresponding path program 1 times [2023-11-28 20:39:06,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:06,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [654840854] [2023-11-28 20:39:06,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:06,154 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:06,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:06,155 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:06,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2023-11-28 20:39:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:06,301 INFO L262 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:39:06,304 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:06,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:06,321 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:06,321 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:06,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [654840854] [2023-11-28 20:39:06,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [654840854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:06,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:06,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:39:06,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [346865397] [2023-11-28 20:39:06,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:06,323 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:06,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:06,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:06,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:06,323 INFO L87 Difference]: Start difference. First operand 1547 states and 1848 transitions. Second operand has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:07,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:07,722 INFO L93 Difference]: Finished difference Result 1533 states and 1827 transitions. [2023-11-28 20:39:07,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:07,724 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2023-11-28 20:39:07,724 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:07,730 INFO L225 Difference]: With dead ends: 1533 [2023-11-28 20:39:07,730 INFO L226 Difference]: Without dead ends: 1533 [2023-11-28 20:39:07,730 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:07,731 INFO L413 NwaCegarLoop]: 1237 mSDtfsCounter, 58 mSDsluCounter, 2450 mSDsCounter, 0 mSdLazyCounter, 482 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 3687 SdHoareTripleChecker+Invalid, 504 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 482 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:07,731 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 3687 Invalid, 504 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 482 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-28 20:39:07,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1533 states. [2023-11-28 20:39:07,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1533 to 1532. [2023-11-28 20:39:07,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1532 states, 839 states have (on average 2.1477949940405243) internal successors, (1802), 1522 states have internal predecessors, (1802), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:07,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1532 states to 1532 states and 1826 transitions. [2023-11-28 20:39:07,757 INFO L78 Accepts]: Start accepts. Automaton has 1532 states and 1826 transitions. Word has length 12 [2023-11-28 20:39:07,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:07,757 INFO L495 AbstractCegarLoop]: Abstraction has 1532 states and 1826 transitions. [2023-11-28 20:39:07,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:07,757 INFO L276 IsEmpty]: Start isEmpty. Operand 1532 states and 1826 transitions. [2023-11-28 20:39:07,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-28 20:39:07,758 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:07,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:07,761 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Ended with exit code 0 [2023-11-28 20:39:07,958 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:07,959 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:07,959 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:07,959 INFO L85 PathProgramCache]: Analyzing trace with hash -993697339, now seen corresponding path program 1 times [2023-11-28 20:39:07,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:07,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [845003866] [2023-11-28 20:39:07,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:07,960 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:07,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:07,960 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:07,961 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2023-11-28 20:39:08,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:08,115 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:39:08,118 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:08,123 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:39:08,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:08,190 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:08,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:08,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [845003866] [2023-11-28 20:39:08,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [845003866] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:08,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:08,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:39:08,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282582879] [2023-11-28 20:39:08,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:08,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:08,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:08,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:08,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:08,192 INFO L87 Difference]: Start difference. First operand 1532 states and 1826 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:11,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:11,843 INFO L93 Difference]: Finished difference Result 1783 states and 2062 transitions. [2023-11-28 20:39:11,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:11,843 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-28 20:39:11,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:11,850 INFO L225 Difference]: With dead ends: 1783 [2023-11-28 20:39:11,850 INFO L226 Difference]: Without dead ends: 1783 [2023-11-28 20:39:11,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:11,851 INFO L413 NwaCegarLoop]: 717 mSDtfsCounter, 1170 mSDsluCounter, 887 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1181 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 1770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:11,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1181 Valid, 1604 Invalid, 1770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 1756 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2023-11-28 20:39:11,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1783 states. [2023-11-28 20:39:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1783 to 1528. [2023-11-28 20:39:11,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1528 states, 839 states have (on average 2.143027413587604) internal successors, (1798), 1518 states have internal predecessors, (1798), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:11,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1528 states to 1528 states and 1822 transitions. [2023-11-28 20:39:11,884 INFO L78 Accepts]: Start accepts. Automaton has 1528 states and 1822 transitions. Word has length 26 [2023-11-28 20:39:11,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:11,884 INFO L495 AbstractCegarLoop]: Abstraction has 1528 states and 1822 transitions. [2023-11-28 20:39:11,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:11,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1528 states and 1822 transitions. [2023-11-28 20:39:11,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2023-11-28 20:39:11,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:11,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:11,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2023-11-28 20:39:12,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:12,087 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:12,087 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:12,087 INFO L85 PathProgramCache]: Analyzing trace with hash -993697338, now seen corresponding path program 1 times [2023-11-28 20:39:12,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:12,088 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1888278719] [2023-11-28 20:39:12,088 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:12,088 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:12,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:12,090 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:12,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2023-11-28 20:39:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:12,298 INFO L262 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:39:12,301 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:12,311 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:39:12,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:12,500 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:12,500 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:12,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1888278719] [2023-11-28 20:39:12,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1888278719] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:12,501 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:12,501 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:39:12,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970680924] [2023-11-28 20:39:12,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:12,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:12,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:12,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:12,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:12,502 INFO L87 Difference]: Start difference. First operand 1528 states and 1822 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:17,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:17,848 INFO L93 Difference]: Finished difference Result 1871 states and 2066 transitions. [2023-11-28 20:39:17,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:17,848 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 26 [2023-11-28 20:39:17,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:17,857 INFO L225 Difference]: With dead ends: 1871 [2023-11-28 20:39:17,857 INFO L226 Difference]: Without dead ends: 1871 [2023-11-28 20:39:17,857 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:17,857 INFO L413 NwaCegarLoop]: 1043 mSDtfsCounter, 610 mSDsluCounter, 1172 mSDsCounter, 0 mSdLazyCounter, 1873 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 615 SdHoareTripleChecker+Valid, 2215 SdHoareTripleChecker+Invalid, 1876 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1873 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:17,858 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [615 Valid, 2215 Invalid, 1876 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1873 Invalid, 0 Unknown, 0 Unchecked, 5.3s Time] [2023-11-28 20:39:17,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1871 states. [2023-11-28 20:39:17,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1871 to 1524. [2023-11-28 20:39:17,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1524 states, 839 states have (on average 2.138259833134684) internal successors, (1794), 1514 states have internal predecessors, (1794), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:17,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1524 states to 1524 states and 1818 transitions. [2023-11-28 20:39:17,881 INFO L78 Accepts]: Start accepts. Automaton has 1524 states and 1818 transitions. Word has length 26 [2023-11-28 20:39:17,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:17,882 INFO L495 AbstractCegarLoop]: Abstraction has 1524 states and 1818 transitions. [2023-11-28 20:39:17,882 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:17,882 INFO L276 IsEmpty]: Start isEmpty. Operand 1524 states and 1818 transitions. [2023-11-28 20:39:17,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-11-28 20:39:17,883 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:17,883 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:17,887 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2023-11-28 20:39:18,084 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:18,084 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:18,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:18,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1872897729, now seen corresponding path program 1 times [2023-11-28 20:39:18,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:18,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1183884671] [2023-11-28 20:39:18,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:18,086 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:18,086 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:18,087 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:18,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2023-11-28 20:39:18,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:18,329 INFO L262 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:39:18,332 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:18,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:18,386 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:18,386 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:18,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1183884671] [2023-11-28 20:39:18,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1183884671] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:18,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:18,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:39:18,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065711468] [2023-11-28 20:39:18,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:18,387 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:18,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:18,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:18,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:18,388 INFO L87 Difference]: Start difference. First operand 1524 states and 1818 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:19,802 INFO L93 Difference]: Finished difference Result 1518 states and 1808 transitions. [2023-11-28 20:39:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:19,803 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 42 [2023-11-28 20:39:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:19,809 INFO L225 Difference]: With dead ends: 1518 [2023-11-28 20:39:19,809 INFO L226 Difference]: Without dead ends: 1518 [2023-11-28 20:39:19,809 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:19,810 INFO L413 NwaCegarLoop]: 1231 mSDtfsCounter, 23 mSDsluCounter, 2442 mSDsCounter, 0 mSdLazyCounter, 478 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 3673 SdHoareTripleChecker+Invalid, 484 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 478 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:19,810 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 3673 Invalid, 484 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 478 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-28 20:39:19,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1518 states. [2023-11-28 20:39:19,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1518 to 1518. [2023-11-28 20:39:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 833 states have (on average 2.141656662665066) internal successors, (1784), 1508 states have internal predecessors, (1784), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:19,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1808 transitions. [2023-11-28 20:39:19,838 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1808 transitions. Word has length 42 [2023-11-28 20:39:19,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:19,838 INFO L495 AbstractCegarLoop]: Abstraction has 1518 states and 1808 transitions. [2023-11-28 20:39:19,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:19,839 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1808 transitions. [2023-11-28 20:39:19,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-11-28 20:39:19,840 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:19,840 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:19,845 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2023-11-28 20:39:20,042 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:20,042 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr107REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:20,042 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:20,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1062926561, now seen corresponding path program 1 times [2023-11-28 20:39:20,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:20,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [563314171] [2023-11-28 20:39:20,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:20,043 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:20,043 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:20,044 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:20,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2023-11-28 20:39:20,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:20,261 INFO L262 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:39:20,264 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:20,511 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:20,511 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:20,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:20,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [563314171] [2023-11-28 20:39:20,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [563314171] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:20,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:20,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-28 20:39:20,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59637247] [2023-11-28 20:39:20,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:20,512 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-28 20:39:20,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:20,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-28 20:39:20,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:20,513 INFO L87 Difference]: Start difference. First operand 1518 states and 1808 transitions. Second operand has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:21,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:21,842 INFO L93 Difference]: Finished difference Result 1741 states and 2040 transitions. [2023-11-28 20:39:21,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-28 20:39:21,844 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 46 [2023-11-28 20:39:21,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:21,850 INFO L225 Difference]: With dead ends: 1741 [2023-11-28 20:39:21,850 INFO L226 Difference]: Without dead ends: 1741 [2023-11-28 20:39:21,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-28 20:39:21,851 INFO L413 NwaCegarLoop]: 1298 mSDtfsCounter, 246 mSDsluCounter, 1132 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 2430 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:21,851 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 2430 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2023-11-28 20:39:21,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1741 states. [2023-11-28 20:39:21,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1741 to 1561. [2023-11-28 20:39:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1561 states, 876 states have (on average 2.085616438356164) internal successors, (1827), 1551 states have internal predecessors, (1827), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:21,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1561 states to 1561 states and 1851 transitions. [2023-11-28 20:39:21,875 INFO L78 Accepts]: Start accepts. Automaton has 1561 states and 1851 transitions. Word has length 46 [2023-11-28 20:39:21,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:21,876 INFO L495 AbstractCegarLoop]: Abstraction has 1561 states and 1851 transitions. [2023-11-28 20:39:21,876 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 2 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:21,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1561 states and 1851 transitions. [2023-11-28 20:39:21,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2023-11-28 20:39:21,878 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:21,878 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:21,883 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (11)] Ended with exit code 0 [2023-11-28 20:39:22,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:22,084 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:22,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:22,084 INFO L85 PathProgramCache]: Analyzing trace with hash 1041257572, now seen corresponding path program 1 times [2023-11-28 20:39:22,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:22,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1561152745] [2023-11-28 20:39:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:22,085 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:22,085 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:22,086 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:22,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2023-11-28 20:39:22,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:22,434 INFO L262 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 8 conjunts are in the unsatisfiable core [2023-11-28 20:39:22,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:22,443 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:39:22,448 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:39:22,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:39:22,916 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2023-11-28 20:39:22,932 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:39:22,933 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:39:22,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:22,949 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:22,949 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:22,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1561152745] [2023-11-28 20:39:22,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1561152745] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:22,950 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:22,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-28 20:39:22,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265418502] [2023-11-28 20:39:22,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:22,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:22,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:22,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:22,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:22,951 INFO L87 Difference]: Start difference. First operand 1561 states and 1851 transitions. Second operand has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:26,937 INFO L93 Difference]: Finished difference Result 1731 states and 2006 transitions. [2023-11-28 20:39:26,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:26,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 49 [2023-11-28 20:39:26,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:26,945 INFO L225 Difference]: With dead ends: 1731 [2023-11-28 20:39:26,945 INFO L226 Difference]: Without dead ends: 1731 [2023-11-28 20:39:26,945 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:26,946 INFO L413 NwaCegarLoop]: 468 mSDtfsCounter, 1377 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 1355 mSolverCounterSat, 95 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1393 SdHoareTripleChecker+Valid, 761 SdHoareTripleChecker+Invalid, 1450 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 1355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:26,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1393 Valid, 761 Invalid, 1450 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 1355 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2023-11-28 20:39:26,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1731 states. [2023-11-28 20:39:26,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1731 to 1344. [2023-11-28 20:39:26,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 743 states have (on average 1.9636608344549125) internal successors, (1459), 1334 states have internal predecessors, (1459), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:26,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1483 transitions. [2023-11-28 20:39:26,976 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1483 transitions. Word has length 49 [2023-11-28 20:39:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:26,976 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1483 transitions. [2023-11-28 20:39:26,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.333333333333332) internal successors, (49), 4 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:26,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1483 transitions. [2023-11-28 20:39:26,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-28 20:39:26,978 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:26,978 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:26,985 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (12)] Ended with exit code 0 [2023-11-28 20:39:27,180 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:27,180 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr66REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:27,181 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:27,181 INFO L85 PathProgramCache]: Analyzing trace with hash -591425836, now seen corresponding path program 1 times [2023-11-28 20:39:27,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:27,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1783690053] [2023-11-28 20:39:27,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:27,182 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:27,182 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:27,183 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:27,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2023-11-28 20:39:27,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:27,424 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-28 20:39:27,426 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:27,434 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:39:27,451 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:39:27,472 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 11 [2023-11-28 20:39:27,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:27,480 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:27,480 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:27,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1783690053] [2023-11-28 20:39:27,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1783690053] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:27,480 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:27,480 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:39:27,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522754495] [2023-11-28 20:39:27,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:27,481 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:39:27,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:27,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:39:27,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:27,481 INFO L87 Difference]: Start difference. First operand 1344 states and 1483 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:31,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:31,517 INFO L93 Difference]: Finished difference Result 1343 states and 1482 transitions. [2023-11-28 20:39:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:39:31,518 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-28 20:39:31,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:31,523 INFO L225 Difference]: With dead ends: 1343 [2023-11-28 20:39:31,523 INFO L226 Difference]: Without dead ends: 1343 [2023-11-28 20:39:31,524 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:39:31,524 INFO L413 NwaCegarLoop]: 1159 mSDtfsCounter, 3 mSDsluCounter, 1847 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 3006 SdHoareTripleChecker+Invalid, 2238 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:31,524 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 3006 Invalid, 2238 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2023-11-28 20:39:31,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1343 states. [2023-11-28 20:39:31,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1343 to 1343. [2023-11-28 20:39:31,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1343 states, 743 states have (on average 1.9623149394347241) internal successors, (1458), 1333 states have internal predecessors, (1458), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:31,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1343 states to 1343 states and 1482 transitions. [2023-11-28 20:39:31,540 INFO L78 Accepts]: Start accepts. Automaton has 1343 states and 1482 transitions. Word has length 53 [2023-11-28 20:39:31,540 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:31,540 INFO L495 AbstractCegarLoop]: Abstraction has 1343 states and 1482 transitions. [2023-11-28 20:39:31,540 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:31,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1343 states and 1482 transitions. [2023-11-28 20:39:31,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2023-11-28 20:39:31,541 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:31,542 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:31,547 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (13)] Ended with exit code 0 [2023-11-28 20:39:31,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:31,743 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr67REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:31,744 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:31,744 INFO L85 PathProgramCache]: Analyzing trace with hash -591425835, now seen corresponding path program 1 times [2023-11-28 20:39:31,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:31,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [22681646] [2023-11-28 20:39:31,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:31,745 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:31,745 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:31,745 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:31,746 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2023-11-28 20:39:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:31,980 INFO L262 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 10 conjunts are in the unsatisfiable core [2023-11-28 20:39:31,983 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:31,990 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:39:32,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:39:32,012 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:39:32,053 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 9 [2023-11-28 20:39:32,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:32,069 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:32,070 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:32,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [22681646] [2023-11-28 20:39:32,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [22681646] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:32,070 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:32,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:39:32,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876841857] [2023-11-28 20:39:32,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:32,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-28 20:39:32,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:32,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-28 20:39:32,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:32,071 INFO L87 Difference]: Start difference. First operand 1343 states and 1482 transitions. Second operand has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:37,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:37,324 INFO L93 Difference]: Finished difference Result 1342 states and 1481 transitions. [2023-11-28 20:39:37,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-28 20:39:37,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2023-11-28 20:39:37,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:37,329 INFO L225 Difference]: With dead ends: 1342 [2023-11-28 20:39:37,329 INFO L226 Difference]: Without dead ends: 1342 [2023-11-28 20:39:37,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-11-28 20:39:37,330 INFO L413 NwaCegarLoop]: 1159 mSDtfsCounter, 1 mSDsluCounter, 1891 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3050 SdHoareTripleChecker+Invalid, 2192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:37,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3050 Invalid, 2192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2023-11-28 20:39:37,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1342 states. [2023-11-28 20:39:37,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1342 to 1342. [2023-11-28 20:39:37,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1342 states, 742 states have (on average 1.963611859838275) internal successors, (1457), 1332 states have internal predecessors, (1457), 13 states have call successors, (13), 3 states have call predecessors, (13), 2 states have return successors, (11), 7 states have call predecessors, (11), 11 states have call successors, (11) [2023-11-28 20:39:37,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1342 states to 1342 states and 1481 transitions. [2023-11-28 20:39:37,345 INFO L78 Accepts]: Start accepts. Automaton has 1342 states and 1481 transitions. Word has length 53 [2023-11-28 20:39:37,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:37,345 INFO L495 AbstractCegarLoop]: Abstraction has 1342 states and 1481 transitions. [2023-11-28 20:39:37,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 13.25) internal successors, (53), 5 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-28 20:39:37,345 INFO L276 IsEmpty]: Start isEmpty. Operand 1342 states and 1481 transitions. [2023-11-28 20:39:37,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-28 20:39:37,346 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:37,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:37,351 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (14)] Ended with exit code 0 [2023-11-28 20:39:37,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:37,546 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:37,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:37,547 INFO L85 PathProgramCache]: Analyzing trace with hash 1426616952, now seen corresponding path program 1 times [2023-11-28 20:39:37,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:37,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2035887848] [2023-11-28 20:39:37,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:37,548 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:37,548 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:37,548 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:37,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Waiting until timeout for monitored process [2023-11-28 20:39:37,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:37,802 INFO L262 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-28 20:39:37,804 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:37,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:37,821 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-28 20:39:37,822 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:37,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2035887848] [2023-11-28 20:39:37,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2035887848] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-28 20:39:37,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-28 20:39:37,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-28 20:39:37,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810517908] [2023-11-28 20:39:37,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-28 20:39:37,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-28 20:39:37,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:37,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-28 20:39:37,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-28 20:39:37,824 INFO L87 Difference]: Start difference. First operand 1342 states and 1481 transitions. Second operand has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:39:39,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:39,222 INFO L93 Difference]: Finished difference Result 1344 states and 1485 transitions. [2023-11-28 20:39:39,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-28 20:39:39,223 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 59 [2023-11-28 20:39:39,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:39,231 INFO L225 Difference]: With dead ends: 1344 [2023-11-28 20:39:39,231 INFO L226 Difference]: Without dead ends: 1344 [2023-11-28 20:39:39,231 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-28 20:39:39,232 INFO L413 NwaCegarLoop]: 1158 mSDtfsCounter, 1 mSDsluCounter, 2310 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 3468 SdHoareTripleChecker+Invalid, 470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:39,232 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 3468 Invalid, 470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2023-11-28 20:39:39,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1344 states. [2023-11-28 20:39:39,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1344 to 1344. [2023-11-28 20:39:39,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1344 states, 743 states have (on average 1.9636608344549125) internal successors, (1459), 1334 states have internal predecessors, (1459), 13 states have call successors, (13), 3 states have call predecessors, (13), 3 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:39:39,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1344 states to 1344 states and 1485 transitions. [2023-11-28 20:39:39,254 INFO L78 Accepts]: Start accepts. Automaton has 1344 states and 1485 transitions. Word has length 59 [2023-11-28 20:39:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:39,254 INFO L495 AbstractCegarLoop]: Abstraction has 1344 states and 1485 transitions. [2023-11-28 20:39:39,254 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.0) internal successors, (57), 4 states have internal predecessors, (57), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-11-28 20:39:39,254 INFO L276 IsEmpty]: Start isEmpty. Operand 1344 states and 1485 transitions. [2023-11-28 20:39:39,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2023-11-28 20:39:39,254 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:39,255 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:39,260 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (15)] Ended with exit code 0 [2023-11-28 20:39:39,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:39,455 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:39,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:39,455 INFO L85 PathProgramCache]: Analyzing trace with hash -542117052, now seen corresponding path program 1 times [2023-11-28 20:39:39,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:39,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [163868695] [2023-11-28 20:39:39,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:39:39,456 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:39,456 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:39,457 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:39,458 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Waiting until timeout for monitored process [2023-11-28 20:39:39,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:39:39,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-28 20:39:39,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:39,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:39,751 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:39:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:39,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:39,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [163868695] [2023-11-28 20:39:39,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [163868695] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:39:39,804 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:39:39,804 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-28 20:39:39,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37860242] [2023-11-28 20:39:39,804 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:39:39,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-28 20:39:39,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:39,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-28 20:39:39,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-28 20:39:39,806 INFO L87 Difference]: Start difference. First operand 1344 states and 1485 transitions. Second operand has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:42,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:42,032 INFO L93 Difference]: Finished difference Result 1353 states and 1500 transitions. [2023-11-28 20:39:42,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2023-11-28 20:39:42,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 60 [2023-11-28 20:39:42,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:42,038 INFO L225 Difference]: With dead ends: 1353 [2023-11-28 20:39:42,038 INFO L226 Difference]: Without dead ends: 1353 [2023-11-28 20:39:42,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2023-11-28 20:39:42,038 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 6 mSDsluCounter, 4610 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5766 SdHoareTripleChecker+Invalid, 830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:42,039 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5766 Invalid, 830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2023-11-28 20:39:42,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2023-11-28 20:39:42,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1352. [2023-11-28 20:39:42,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1352 states, 750 states have (on average 1.9626666666666666) internal successors, (1472), 1341 states have internal predecessors, (1472), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:39:42,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1352 states to 1352 states and 1498 transitions. [2023-11-28 20:39:42,061 INFO L78 Accepts]: Start accepts. Automaton has 1352 states and 1498 transitions. Word has length 60 [2023-11-28 20:39:42,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:42,061 INFO L495 AbstractCegarLoop]: Abstraction has 1352 states and 1498 transitions. [2023-11-28 20:39:42,061 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 10.166666666666666) internal successors, (61), 8 states have internal predecessors, (61), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:42,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1352 states and 1498 transitions. [2023-11-28 20:39:42,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2023-11-28 20:39:42,062 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:42,063 INFO L195 NwaCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:42,067 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (16)] Ended with exit code 0 [2023-11-28 20:39:42,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:42,263 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:42,263 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:42,263 INFO L85 PathProgramCache]: Analyzing trace with hash -2092415624, now seen corresponding path program 2 times [2023-11-28 20:39:42,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:42,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [510278615] [2023-11-28 20:39:42,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-28 20:39:42,264 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:42,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:42,265 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:42,266 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Waiting until timeout for monitored process [2023-11-28 20:39:42,738 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-28 20:39:42,738 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:39:42,754 INFO L262 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-28 20:39:42,756 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:42,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:42,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:39:42,945 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:42,945 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:42,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [510278615] [2023-11-28 20:39:42,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [510278615] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:39:42,946 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:39:42,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-28 20:39:42,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130702813] [2023-11-28 20:39:42,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:39:42,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-28 20:39:42,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:42,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-28 20:39:42,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-28 20:39:42,948 INFO L87 Difference]: Start difference. First operand 1352 states and 1498 transitions. Second operand has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:45,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:45,813 INFO L93 Difference]: Finished difference Result 1367 states and 1524 transitions. [2023-11-28 20:39:45,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-28 20:39:45,814 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 63 [2023-11-28 20:39:45,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:45,818 INFO L225 Difference]: With dead ends: 1367 [2023-11-28 20:39:45,818 INFO L226 Difference]: Without dead ends: 1365 [2023-11-28 20:39:45,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=257, Invalid=499, Unknown=0, NotChecked=0, Total=756 [2023-11-28 20:39:45,819 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 12 mSDsluCounter, 5770 mSDsCounter, 0 mSdLazyCounter, 1116 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6926 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:45,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 6926 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1116 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2023-11-28 20:39:45,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2023-11-28 20:39:45,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1361. [2023-11-28 20:39:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1361 states, 759 states have (on average 1.9552042160737813) internal successors, (1484), 1350 states have internal predecessors, (1484), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:39:45,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1361 states to 1361 states and 1510 transitions. [2023-11-28 20:39:45,843 INFO L78 Accepts]: Start accepts. Automaton has 1361 states and 1510 transitions. Word has length 63 [2023-11-28 20:39:45,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:45,843 INFO L495 AbstractCegarLoop]: Abstraction has 1361 states and 1510 transitions. [2023-11-28 20:39:45,843 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 5.583333333333333) internal successors, (67), 14 states have internal predecessors, (67), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:45,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1361 states and 1510 transitions. [2023-11-28 20:39:45,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2023-11-28 20:39:45,844 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:45,844 INFO L195 NwaCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:45,850 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (17)] Ended with exit code 0 [2023-11-28 20:39:46,044 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:46,045 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:46,045 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:46,045 INFO L85 PathProgramCache]: Analyzing trace with hash 1298477560, now seen corresponding path program 3 times [2023-11-28 20:39:46,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:46,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055047415] [2023-11-28 20:39:46,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-28 20:39:46,046 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:46,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:46,047 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:46,048 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Waiting until timeout for monitored process [2023-11-28 20:39:46,729 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-28 20:39:46,730 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:39:46,745 INFO L262 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 14 conjunts are in the unsatisfiable core [2023-11-28 20:39:46,747 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:46,871 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:46,871 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:39:47,474 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:47,474 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:47,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055047415] [2023-11-28 20:39:47,474 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055047415] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:39:47,474 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:39:47,474 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-28 20:39:47,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366621701] [2023-11-28 20:39:47,475 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:39:47,475 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-28 20:39:47,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:47,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-28 20:39:47,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-28 20:39:47,476 INFO L87 Difference]: Start difference. First operand 1361 states and 1510 transitions. Second operand has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:55,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:39:55,215 INFO L93 Difference]: Finished difference Result 1391 states and 1574 transitions. [2023-11-28 20:39:55,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2023-11-28 20:39:55,216 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 69 [2023-11-28 20:39:55,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:39:55,220 INFO L225 Difference]: With dead ends: 1391 [2023-11-28 20:39:55,220 INFO L226 Difference]: Without dead ends: 1388 [2023-11-28 20:39:55,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 159 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=793, Invalid=1559, Unknown=0, NotChecked=0, Total=2352 [2023-11-28 20:39:55,222 INFO L413 NwaCegarLoop]: 1154 mSDtfsCounter, 25 mSDsluCounter, 13818 mSDsCounter, 0 mSdLazyCounter, 2888 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 14972 SdHoareTripleChecker+Invalid, 2917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 2888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2023-11-28 20:39:55,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 14972 Invalid, 2917 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 2888 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2023-11-28 20:39:55,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1388 states. [2023-11-28 20:39:55,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1388 to 1379. [2023-11-28 20:39:55,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1379 states, 777 states have (on average 1.9395109395109396) internal successors, (1507), 1368 states have internal predecessors, (1507), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:39:55,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1379 states to 1379 states and 1533 transitions. [2023-11-28 20:39:55,258 INFO L78 Accepts]: Start accepts. Automaton has 1379 states and 1533 transitions. Word has length 69 [2023-11-28 20:39:55,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:39:55,258 INFO L495 AbstractCegarLoop]: Abstraction has 1379 states and 1533 transitions. [2023-11-28 20:39:55,258 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 26 states have internal predecessors, (79), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:39:55,258 INFO L276 IsEmpty]: Start isEmpty. Operand 1379 states and 1533 transitions. [2023-11-28 20:39:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2023-11-28 20:39:55,259 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:39:55,259 INFO L195 NwaCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:39:55,266 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (18)] Forceful destruction successful, exit code 0 [2023-11-28 20:39:55,459 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:55,460 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:39:55,460 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:39:55,461 INFO L85 PathProgramCache]: Analyzing trace with hash 1339878136, now seen corresponding path program 4 times [2023-11-28 20:39:55,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:39:55,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1113649848] [2023-11-28 20:39:55,461 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-28 20:39:55,461 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:39:55,461 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:39:55,462 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:39:55,463 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Waiting until timeout for monitored process [2023-11-28 20:39:55,876 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-28 20:39:55,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:39:55,892 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 25 conjunts are in the unsatisfiable core [2023-11-28 20:39:55,894 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:39:56,229 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:56,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:39:57,706 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-28 20:39:57,706 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:39:57,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1113649848] [2023-11-28 20:39:57,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1113649848] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-28 20:39:57,707 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:39:57,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-28 20:39:57,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948576036] [2023-11-28 20:39:57,707 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:39:57,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-28 20:39:57,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:39:57,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-28 20:39:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=672, Invalid=1778, Unknown=0, NotChecked=0, Total=2450 [2023-11-28 20:39:57,710 INFO L87 Difference]: Start difference. First operand 1379 states and 1533 transitions. Second operand has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:40:15,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:40:15,613 INFO L93 Difference]: Finished difference Result 1436 states and 1643 transitions. [2023-11-28 20:40:15,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2023-11-28 20:40:15,614 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 81 [2023-11-28 20:40:15,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:40:15,619 INFO L225 Difference]: With dead ends: 1436 [2023-11-28 20:40:15,619 INFO L226 Difference]: Without dead ends: 1434 [2023-11-28 20:40:15,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1385 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=3791, Invalid=9319, Unknown=0, NotChecked=0, Total=13110 [2023-11-28 20:40:15,625 INFO L413 NwaCegarLoop]: 1156 mSDtfsCounter, 48 mSDsluCounter, 26542 mSDsCounter, 0 mSdLazyCounter, 6534 mSolverCounterSat, 155 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 27698 SdHoareTripleChecker+Invalid, 6689 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 155 IncrementalHoareTripleChecker+Valid, 6534 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.8s IncrementalHoareTripleChecker+Time [2023-11-28 20:40:15,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 27698 Invalid, 6689 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [155 Valid, 6534 Invalid, 0 Unknown, 0 Unchecked, 12.8s Time] [2023-11-28 20:40:15,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2023-11-28 20:40:15,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1413. [2023-11-28 20:40:15,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1413 states, 811 states have (on average 1.9149198520345252) internal successors, (1553), 1402 states have internal predecessors, (1553), 13 states have call successors, (13), 4 states have call predecessors, (13), 4 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:40:15,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1413 states to 1413 states and 1579 transitions. [2023-11-28 20:40:15,655 INFO L78 Accepts]: Start accepts. Automaton has 1413 states and 1579 transitions. Word has length 81 [2023-11-28 20:40:15,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:40:15,656 INFO L495 AbstractCegarLoop]: Abstraction has 1413 states and 1579 transitions. [2023-11-28 20:40:15,656 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 2.1458333333333335) internal successors, (103), 50 states have internal predecessors, (103), 1 states have call successors, (1), 1 states have call predecessors, (1), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2023-11-28 20:40:15,656 INFO L276 IsEmpty]: Start isEmpty. Operand 1413 states and 1579 transitions. [2023-11-28 20:40:15,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-28 20:40:15,657 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:40:15,657 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:40:15,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (19)] Ended with exit code 0 [2023-11-28 20:40:15,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:40:15,859 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr70REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:40:15,859 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:40:15,859 INFO L85 PathProgramCache]: Analyzing trace with hash 206832504, now seen corresponding path program 5 times [2023-11-28 20:40:15,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:40:15,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [852027145] [2023-11-28 20:40:15,860 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:40:15,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:40:15,860 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:40:15,861 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:40:15,862 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Waiting until timeout for monitored process [2023-11-28 20:40:17,182 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-28 20:40:17,182 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:40:17,210 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 58 conjunts are in the unsatisfiable core [2023-11-28 20:40:17,219 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:40:17,224 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:40:17,330 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-28 20:40:17,331 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-28 20:40:17,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:40:17,467 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-28 20:40:18,419 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:40:18,419 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:40:18,461 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-28 20:40:18,496 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:40:18,496 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:40:22,935 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:40:22,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [852027145] [2023-11-28 20:40:22,936 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [852027145] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:40:22,936 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2048516926] [2023-11-28 20:40:22,936 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-28 20:40:22,936 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:40:22,936 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:40:22,937 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:40:22,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Waiting until timeout for monitored process [2023-11-28 20:41:27,183 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 23 check-sat command(s) [2023-11-28 20:41:27,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-28 20:41:27,381 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 60 conjunts are in the unsatisfiable core [2023-11-28 20:41:27,389 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:27,396 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:41:27,706 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:41:27,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:41:27,748 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:41:28,468 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:41:28,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:41:28,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-28 20:41:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:41:28,549 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:41:29,005 INFO L349 Elim1Store]: treesize reduction 7, result has 63.2 percent of original size [2023-11-28 20:41:29,005 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 24 [2023-11-28 20:41:29,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [2048516926] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:41:29,101 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:41:29,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 17 [2023-11-28 20:41:29,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486970371] [2023-11-28 20:41:29,102 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:41:29,102 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-11-28 20:41:29,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:41:29,103 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-11-28 20:41:29,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=353, Unknown=10, NotChecked=0, Total=420 [2023-11-28 20:41:29,104 INFO L87 Difference]: Start difference. First operand 1413 states and 1579 transitions. Second operand has 18 states, 15 states have (on average 7.8) internal successors, (117), 17 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:41:50,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:41:50,902 INFO L93 Difference]: Finished difference Result 2212 states and 2413 transitions. [2023-11-28 20:41:50,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-28 20:41:50,903 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 15 states have (on average 7.8) internal successors, (117), 17 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2023-11-28 20:41:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:41:50,907 INFO L225 Difference]: With dead ends: 2212 [2023-11-28 20:41:50,907 INFO L226 Difference]: Without dead ends: 2210 [2023-11-28 20:41:50,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 192 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=107, Invalid=585, Unknown=10, NotChecked=0, Total=702 [2023-11-28 20:41:50,908 INFO L413 NwaCegarLoop]: 695 mSDtfsCounter, 1551 mSDsluCounter, 8065 mSDsCounter, 0 mSdLazyCounter, 9797 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 8760 SdHoareTripleChecker+Invalid, 9838 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 9797 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.3s IncrementalHoareTripleChecker+Time [2023-11-28 20:41:50,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1572 Valid, 8760 Invalid, 9838 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 9797 Invalid, 0 Unknown, 0 Unchecked, 21.3s Time] [2023-11-28 20:41:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2210 states. [2023-11-28 20:41:50,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2210 to 1459. [2023-11-28 20:41:50,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1459 states, 857 states have (on average 1.865810968494749) internal successors, (1599), 1447 states have internal predecessors, (1599), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:41:50,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1459 states to 1459 states and 1625 transitions. [2023-11-28 20:41:50,938 INFO L78 Accepts]: Start accepts. Automaton has 1459 states and 1625 transitions. Word has length 103 [2023-11-28 20:41:50,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:41:50,938 INFO L495 AbstractCegarLoop]: Abstraction has 1459 states and 1625 transitions. [2023-11-28 20:41:50,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 15 states have (on average 7.8) internal successors, (117), 17 states have internal predecessors, (117), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:41:50,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1459 states and 1625 transitions. [2023-11-28 20:41:50,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2023-11-28 20:41:50,939 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:41:50,939 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:41:50,971 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (21)] Ended with exit code 0 [2023-11-28 20:41:51,148 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (20)] Ended with exit code 0 [2023-11-28 20:41:51,340 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:41:51,340 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr71REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:41:51,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:41:51,341 INFO L85 PathProgramCache]: Analyzing trace with hash 206832505, now seen corresponding path program 1 times [2023-11-28 20:41:51,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:41:51,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873024347] [2023-11-28 20:41:51,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:51,342 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:41:51,342 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:41:51,343 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:41:51,344 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Waiting until timeout for monitored process [2023-11-28 20:41:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:41:52,050 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 107 conjunts are in the unsatisfiable core [2023-11-28 20:41:52,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:41:52,073 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:41:52,202 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:41:52,219 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:41:52,219 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:41:52,255 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:41:52,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:41:52,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-28 20:41:52,391 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:41:53,271 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:41:53,272 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:41:53,288 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:41:53,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-28 20:41:53,346 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:41:53,378 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:41:53,378 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:41:54,796 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_2668 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_2669 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv20 32) (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2669) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2668) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_2669 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_2669) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv16 32) .cse1) (bvadd (_ bv20 32) .cse1)))))) is different from false [2023-11-28 20:41:54,803 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:41:54,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873024347] [2023-11-28 20:41:54,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873024347] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:41:54,803 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1020370808] [2023-11-28 20:41:54,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:41:54,803 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:41:54,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:41:54,804 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:41:54,806 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Waiting until timeout for monitored process [2023-11-28 20:43:28,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:28,340 INFO L262 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 109 conjunts are in the unsatisfiable core [2023-11-28 20:43:28,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:28,356 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:43:28,665 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:43:28,680 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:43:28,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:43:28,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:43:28,745 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:43:28,879 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-28 20:43:28,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-28 20:43:29,559 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:43:29,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-28 20:43:29,571 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-28 20:43:29,643 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-28 20:43:29,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-28 20:43:29,653 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:43:29,653 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:43:30,900 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_3207 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3207) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv16 32) .cse0) (bvadd .cse0 (_ bv20 32))))) (forall ((v_ArrVal_3207 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3206 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3207) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv20 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3206) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-28 20:43:30,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1020370808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:43:30,910 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:43:30,911 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12 [2023-11-28 20:43:30,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135570684] [2023-11-28 20:43:30,911 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:43:30,911 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-28 20:43:30,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:43:30,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-28 20:43:30,912 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=172, Unknown=2, NotChecked=54, Total=272 [2023-11-28 20:43:30,912 INFO L87 Difference]: Start difference. First operand 1459 states and 1625 transitions. Second operand has 13 states, 10 states have (on average 11.2) internal successors, (112), 13 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:43:47,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:43:47,431 INFO L93 Difference]: Finished difference Result 2208 states and 2405 transitions. [2023-11-28 20:43:47,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-28 20:43:47,432 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 11.2) internal successors, (112), 13 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 103 [2023-11-28 20:43:47,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:43:47,435 INFO L225 Difference]: With dead ends: 2208 [2023-11-28 20:43:47,435 INFO L226 Difference]: Without dead ends: 2208 [2023-11-28 20:43:47,436 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 216 GetRequests, 194 SyntacticMatches, 3 SemanticMatches, 19 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=77, Invalid=271, Unknown=2, NotChecked=70, Total=420 [2023-11-28 20:43:47,436 INFO L413 NwaCegarLoop]: 706 mSDtfsCounter, 2453 mSDsluCounter, 3180 mSDsCounter, 0 mSdLazyCounter, 7793 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2471 SdHoareTripleChecker+Valid, 3886 SdHoareTripleChecker+Invalid, 7830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 7793 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2023-11-28 20:43:47,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2471 Valid, 3886 Invalid, 7830 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [37 Valid, 7793 Invalid, 0 Unknown, 0 Unchecked, 16.2s Time] [2023-11-28 20:43:47,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2023-11-28 20:43:47,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1458. [2023-11-28 20:43:47,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1458 states, 857 states have (on average 1.8646441073512252) internal successors, (1598), 1446 states have internal predecessors, (1598), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:43:47,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1458 states to 1458 states and 1624 transitions. [2023-11-28 20:43:47,470 INFO L78 Accepts]: Start accepts. Automaton has 1458 states and 1624 transitions. Word has length 103 [2023-11-28 20:43:47,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:43:47,471 INFO L495 AbstractCegarLoop]: Abstraction has 1458 states and 1624 transitions. [2023-11-28 20:43:47,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 11.2) internal successors, (112), 13 states have internal predecessors, (112), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:43:47,471 INFO L276 IsEmpty]: Start isEmpty. Operand 1458 states and 1624 transitions. [2023-11-28 20:43:47,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-28 20:43:47,473 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:43:47,473 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:43:47,517 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (23)] Forceful destruction successful, exit code 0 [2023-11-28 20:43:47,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (22)] Forceful destruction successful, exit code 0 [2023-11-28 20:43:47,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:43:47,873 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr74REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:43:47,874 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:43:47,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1199784399, now seen corresponding path program 1 times [2023-11-28 20:43:47,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:43:47,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [826762838] [2023-11-28 20:43:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:47,875 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:43:47,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:43:47,876 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:43:47,877 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Waiting until timeout for monitored process [2023-11-28 20:43:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:48,632 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 59 conjunts are in the unsatisfiable core [2023-11-28 20:43:48,641 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:48,645 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:43:48,769 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-28 20:43:48,769 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-28 20:43:48,812 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:43:48,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-28 20:43:49,782 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:43:49,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:43:49,890 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:43:49,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:43:49,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-28 20:43:49,942 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:43:49,942 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:43:50,001 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3615 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_3615) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-28 20:43:50,012 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3615 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_3615) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2023-11-28 20:43:50,375 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_3615 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_3661 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_3661))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_3615)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:43:50,378 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:43:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [826762838] [2023-11-28 20:43:50,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [826762838] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:43:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1751883808] [2023-11-28 20:43:50,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:43:50,378 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:43:50,378 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:43:50,379 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:43:50,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Waiting until timeout for monitored process [2023-11-28 20:43:53,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:43:53,057 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 62 conjunts are in the unsatisfiable core [2023-11-28 20:43:53,064 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:43:53,070 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:43:53,308 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:43:53,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:43:53,348 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:43:53,976 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:43:53,976 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:43:54,126 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:43:54,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:43:54,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-28 20:43:54,145 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:43:54,145 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:43:54,161 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4069 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4069) |c_ULTIMATE.start_main_~user~0#1.base|) (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (_ bv1 1)))) is different from false [2023-11-28 20:43:54,663 INFO L349 Elim1Store]: treesize reduction 7, result has 77.4 percent of original size [2023-11-28 20:43:54,663 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 36 [2023-11-28 20:43:54,673 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_4069 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4115 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4115))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4069)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem33#1.base|)) is different from false [2023-11-28 20:43:54,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1751883808] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:43:54,676 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:43:54,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2023-11-28 20:43:54,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1338616207] [2023-11-28 20:43:54,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:43:54,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:43:54,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:43:54,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:43:54,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=396, Unknown=8, NotChecked=220, Total=702 [2023-11-28 20:43:54,684 INFO L87 Difference]: Start difference. First operand 1458 states and 1624 transitions. Second operand has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:44:09,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:44:09,125 INFO L93 Difference]: Finished difference Result 2208 states and 2407 transitions. [2023-11-28 20:44:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-28 20:44:09,125 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2023-11-28 20:44:09,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:44:09,129 INFO L225 Difference]: With dead ends: 2208 [2023-11-28 20:44:09,130 INFO L226 Difference]: Without dead ends: 2208 [2023-11-28 20:44:09,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=141, Invalid=683, Unknown=8, NotChecked=290, Total=1122 [2023-11-28 20:44:09,131 INFO L413 NwaCegarLoop]: 694 mSDtfsCounter, 2457 mSDsluCounter, 5960 mSDsCounter, 0 mSdLazyCounter, 7417 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2478 SdHoareTripleChecker+Valid, 6654 SdHoareTripleChecker+Invalid, 7476 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 7417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:44:09,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2478 Valid, 6654 Invalid, 7476 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 7417 Invalid, 0 Unknown, 0 Unchecked, 14.0s Time] [2023-11-28 20:44:09,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2208 states. [2023-11-28 20:44:09,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2208 to 1457. [2023-11-28 20:44:09,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1457 states, 857 states have (on average 1.8634772462077014) internal successors, (1597), 1445 states have internal predecessors, (1597), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:44:09,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1457 states to 1457 states and 1623 transitions. [2023-11-28 20:44:09,154 INFO L78 Accepts]: Start accepts. Automaton has 1457 states and 1623 transitions. Word has length 105 [2023-11-28 20:44:09,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:44:09,155 INFO L495 AbstractCegarLoop]: Abstraction has 1457 states and 1623 transitions. [2023-11-28 20:44:09,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 19 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:44:09,155 INFO L276 IsEmpty]: Start isEmpty. Operand 1457 states and 1623 transitions. [2023-11-28 20:44:09,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2023-11-28 20:44:09,156 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:44:09,156 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:44:09,164 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (24)] Ended with exit code 0 [2023-11-28 20:44:09,367 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (25)] Ended with exit code 0 [2023-11-28 20:44:09,556 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-28 20:44:09,557 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr75REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:44:09,557 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:44:09,557 INFO L85 PathProgramCache]: Analyzing trace with hash 1199784400, now seen corresponding path program 1 times [2023-11-28 20:44:09,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:44:09,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [661132998] [2023-11-28 20:44:09,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:09,558 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:44:09,558 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:44:09,559 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:44:09,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Waiting until timeout for monitored process [2023-11-28 20:44:10,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:10,427 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 110 conjunts are in the unsatisfiable core [2023-11-28 20:44:10,437 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:10,440 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:44:10,538 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:44:10,549 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:44:10,550 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:44:10,572 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:44:10,581 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:44:10,693 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-28 20:44:10,697 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:44:11,308 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:44:11,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:44:11,320 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:44:11,428 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:44:11,428 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:44:11,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:44:11,455 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-28 20:44:11,462 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:44:11,488 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:44:11,488 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:11,641 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (_ bv8 32) (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv4 32) .cse1) (bvadd (_ bv8 32) .cse1)))))) is different from false [2023-11-28 20:44:11,674 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv4 32) .cse0) (bvadd .cse0 (_ bv8 32))))) (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv8 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-28 20:44:12,963 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_4568 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4660 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4660))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4661) .cse0 v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_4568) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_4569 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4661 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_4660 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4661) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_4660) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_4569) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv4 32) .cse3) (bvadd (_ bv8 32) .cse3)))))) is different from false [2023-11-28 20:44:12,972 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:44:12,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [661132998] [2023-11-28 20:44:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [661132998] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:12,972 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [645195312] [2023-11-28 20:44:12,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:44:12,973 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:44:12,973 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:44:12,973 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:44:12,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Waiting until timeout for monitored process [2023-11-28 20:44:16,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:44:16,388 INFO L262 TraceCheckSpWp]: Trace formula consists of 790 conjuncts, 73 conjunts are in the unsatisfiable core [2023-11-28 20:44:16,397 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:44:16,402 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:44:16,412 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:44:16,869 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:44:16,870 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:44:16,876 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 14 [2023-11-28 20:44:16,941 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:44:16,949 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:44:17,027 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-11-28 20:44:17,088 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-28 20:44:17,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-28 20:44:17,740 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2023-11-28 20:44:18,000 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 56 treesize of output 38 [2023-11-28 20:44:18,007 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 22 [2023-11-28 20:44:18,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2023-11-28 20:44:18,145 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-28 20:44:18,145 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 7 [2023-11-28 20:44:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:44:18,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:44:18,540 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 239 treesize of output 167 [2023-11-28 20:44:25,744 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_5119 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_67 (_ BitVec 32))) (let ((.cse2 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5119))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (.cse1 (select |c_#length| v_arrayElimCell_67))) (or (not (bvule (bvadd .cse0 (_ bv20 32)) .cse1)) (bvule (bvadd (_ bv8 32) (select (select (store .cse2 v_arrayElimCell_67 (store (select .cse2 v_arrayElimCell_67) (bvadd (_ bv16 32) .cse0) .cse3)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) .cse1) (= |c_ULTIMATE.start_main_~user~0#1.base| v_arrayElimCell_67))))) (forall ((v_ArrVal_5119 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_67 (_ BitVec 32))) (let ((.cse7 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5119))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (bvadd (_ bv8 32) (select (select (store .cse7 v_arrayElimCell_67 (store (select .cse7 v_arrayElimCell_67) (bvadd (_ bv16 32) .cse4) .cse3)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (.cse5 (select |c_#length| v_arrayElimCell_67))) (or (not (bvule (bvadd .cse4 (_ bv20 32)) .cse5)) (forall ((v_ArrVal_5071 (_ BitVec 32))) (bvule .cse6 (select |c_#length| v_ArrVal_5071))) (bvule .cse6 .cse5)))))) (forall ((v_ArrVal_5119 (Array (_ BitVec 32) (_ BitVec 32))) (v_arrayElimCell_67 (_ BitVec 32))) (let ((.cse10 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5119))) (let ((.cse8 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (or (not (bvule (bvadd .cse8 (_ bv20 32)) (select |c_#length| v_arrayElimCell_67))) (let ((.cse9 (select (select (store .cse10 v_arrayElimCell_67 (store (select .cse10 v_arrayElimCell_67) (bvadd (_ bv16 32) .cse8) .cse3)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv4 32) .cse9) (bvadd (_ bv8 32) .cse9))))))) (forall ((v_ArrVal_5119 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse12 (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5119) |c_ULTIMATE.start_main_~user~0#1.base|))) (let ((.cse11 (select .cse12 .cse3))) (or (not (bvule (bvadd .cse11 (_ bv20 32)) (select |c_#length| |c_ULTIMATE.start_main_~user~0#1.base|))) (not (= |c_ULTIMATE.start_main_~user~0#1.offset| (bvadd .cse11 (_ bv8 32)))) (forall ((v_ArrVal_5071 (_ BitVec 32))) (bvule (bvadd (_ bv8 32) (select (store .cse12 (bvadd (_ bv16 32) .cse11) .cse3) .cse3)) (select |c_#length| v_ArrVal_5071))))))) (forall ((v_ArrVal_5119 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse15 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5119))) (let ((.cse13 (select (select .cse15 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (or (= |c_ULTIMATE.start_main_~user~0#1.offset| (bvadd .cse13 (_ bv8 32))) (forall ((v_arrayElimCell_67 (_ BitVec 32))) (let ((.cse14 (select |c_#length| v_arrayElimCell_67))) (or (not (bvule (bvadd .cse13 (_ bv20 32)) .cse14)) (bvule (bvadd (_ bv8 32) (select (select (store .cse15 v_arrayElimCell_67 (store (select .cse15 v_arrayElimCell_67) (bvadd (_ bv16 32) .cse13) .cse3)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) .cse14)))))))))) is different from false [2023-11-28 20:44:25,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [645195312] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:44:25,878 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:44:25,878 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 19 [2023-11-28 20:44:25,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794599940] [2023-11-28 20:44:25,878 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:44:25,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-28 20:44:25,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:44:25,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-28 20:44:25,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=486, Unknown=4, NotChecked=188, Total=756 [2023-11-28 20:44:25,879 INFO L87 Difference]: Start difference. First operand 1457 states and 1623 transitions. Second operand has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 20 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:45:20,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:45:20,640 INFO L93 Difference]: Finished difference Result 2206 states and 2403 transitions. [2023-11-28 20:45:20,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:45:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 20 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 105 [2023-11-28 20:45:20,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:45:20,646 INFO L225 Difference]: With dead ends: 2206 [2023-11-28 20:45:20,646 INFO L226 Difference]: Without dead ends: 2206 [2023-11-28 20:45:20,647 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 193 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=155, Invalid=849, Unknown=4, NotChecked=252, Total=1260 [2023-11-28 20:45:20,647 INFO L413 NwaCegarLoop]: 495 mSDtfsCounter, 1543 mSDsluCounter, 5302 mSDsCounter, 0 mSdLazyCounter, 14287 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1561 SdHoareTripleChecker+Valid, 5797 SdHoareTripleChecker+Invalid, 14310 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 14287 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 53.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:45:20,648 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1561 Valid, 5797 Invalid, 14310 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [23 Valid, 14287 Invalid, 0 Unknown, 0 Unchecked, 53.4s Time] [2023-11-28 20:45:20,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2023-11-28 20:45:20,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1456. [2023-11-28 20:45:20,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1456 states, 857 states have (on average 1.8623103850641773) internal successors, (1596), 1444 states have internal predecessors, (1596), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:45:20,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1456 states to 1456 states and 1622 transitions. [2023-11-28 20:45:20,665 INFO L78 Accepts]: Start accepts. Automaton has 1456 states and 1622 transitions. Word has length 105 [2023-11-28 20:45:20,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:45:20,665 INFO L495 AbstractCegarLoop]: Abstraction has 1456 states and 1622 transitions. [2023-11-28 20:45:20,665 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 17 states have (on average 7.117647058823529) internal successors, (121), 20 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:45:20,665 INFO L276 IsEmpty]: Start isEmpty. Operand 1456 states and 1622 transitions. [2023-11-28 20:45:20,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-28 20:45:20,666 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:45:20,666 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:45:20,680 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (27)] Ended with exit code 0 [2023-11-28 20:45:20,875 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (26)] Forceful destruction successful, exit code 0 [2023-11-28 20:45:21,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:45:21,067 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr78REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:45:21,067 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:45:21,067 INFO L85 PathProgramCache]: Analyzing trace with hash 1943810240, now seen corresponding path program 1 times [2023-11-28 20:45:21,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:45:21,068 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1967849527] [2023-11-28 20:45:21,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:21,068 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:45:21,068 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:45:21,069 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:45:21,069 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Waiting until timeout for monitored process [2023-11-28 20:45:22,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:45:22,144 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 61 conjunts are in the unsatisfiable core [2023-11-28 20:45:22,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:22,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:45:22,410 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-28 20:45:22,411 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-28 20:45:22,473 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:45:22,625 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-28 20:45:24,055 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:45:24,055 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:45:24,232 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:45:24,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:45:24,384 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:45:24,385 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:45:24,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-28 20:45:24,476 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:45:24,476 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:28,686 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_5543) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (_ bv1 1)))) is different from false [2023-11-28 20:45:28,715 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5542 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_5542))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5543)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-28 20:45:28,739 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5542 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5542))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5543)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:45:29,306 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5542 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_5589 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_5589))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5542)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5543)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:45:29,311 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:45:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1967849527] [2023-11-28 20:45:29,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1967849527] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:45:29,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [548748273] [2023-11-28 20:45:29,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:45:29,312 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:45:29,312 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:45:29,313 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:45:29,314 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Waiting until timeout for monitored process [2023-11-28 20:45:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:45:34,138 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 64 conjunts are in the unsatisfiable core [2023-11-28 20:45:34,147 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:45:34,155 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:45:34,685 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:45:34,686 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:45:34,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:45:35,951 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:45:35,951 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:45:36,220 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:45:36,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:45:36,407 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:45:36,407 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:45:36,425 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-28 20:45:36,431 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:45:36,431 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:45:40,559 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6011 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6011))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5543)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:45:40,581 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6011 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6011))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5543)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:45:41,173 INFO L349 Elim1Store]: treesize reduction 7, result has 87.3 percent of original size [2023-11-28 20:45:41,174 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 61 treesize of output 60 [2023-11-28 20:45:41,191 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_5543 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6011 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6058 (Array (_ BitVec 32) (_ BitVec 32)))) (= |c_ULTIMATE.start_main_#t~mem33#1.base| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6058))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6011)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_5543)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) is different from false [2023-11-28 20:45:41,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [548748273] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:45:41,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:45:41,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 12] total 21 [2023-11-28 20:45:41,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575023579] [2023-11-28 20:45:41,196 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:45:41,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-11-28 20:45:41,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:45:41,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-11-28 20:45:41,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=484, Unknown=8, NotChecked=350, Total=930 [2023-11-28 20:45:41,198 INFO L87 Difference]: Start difference. First operand 1456 states and 1622 transitions. Second operand has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:46:11,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:46:11,474 INFO L93 Difference]: Finished difference Result 2206 states and 2405 transitions. [2023-11-28 20:46:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-28 20:46:11,474 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2023-11-28 20:46:11,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:46:11,479 INFO L225 Difference]: With dead ends: 2206 [2023-11-28 20:46:11,479 INFO L226 Difference]: Without dead ends: 2206 [2023-11-28 20:46:11,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 197 SyntacticMatches, 2 SemanticMatches, 37 ConstructedPredicates, 7 IntricatePredicates, 0 DeprecatedPredicates, 224 ImplicationChecksByTransitivity, 10.1s TimeCoverageRelationStatistics Valid=159, Invalid=853, Unknown=8, NotChecked=462, Total=1482 [2023-11-28 20:46:11,480 INFO L413 NwaCegarLoop]: 693 mSDtfsCounter, 2453 mSDsluCounter, 7019 mSDsCounter, 0 mSdLazyCounter, 8731 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2474 SdHoareTripleChecker+Valid, 7712 SdHoareTripleChecker+Invalid, 8791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 8731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:46:11,480 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2474 Valid, 7712 Invalid, 8791 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [60 Valid, 8731 Invalid, 0 Unknown, 0 Unchecked, 29.4s Time] [2023-11-28 20:46:11,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2206 states. [2023-11-28 20:46:11,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2206 to 1455. [2023-11-28 20:46:11,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1455 states, 857 states have (on average 1.8611435239206535) internal successors, (1595), 1443 states have internal predecessors, (1595), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:46:11,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1455 states to 1455 states and 1621 transitions. [2023-11-28 20:46:11,502 INFO L78 Accepts]: Start accepts. Automaton has 1455 states and 1621 transitions. Word has length 107 [2023-11-28 20:46:11,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:46:11,503 INFO L495 AbstractCegarLoop]: Abstraction has 1455 states and 1621 transitions. [2023-11-28 20:46:11,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 19 states have (on average 6.578947368421052) internal successors, (125), 21 states have internal predecessors, (125), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:46:11,503 INFO L276 IsEmpty]: Start isEmpty. Operand 1455 states and 1621 transitions. [2023-11-28 20:46:11,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2023-11-28 20:46:11,504 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:46:11,504 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:46:11,515 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (28)] Ended with exit code 0 [2023-11-28 20:46:11,721 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (29)] Ended with exit code 0 [2023-11-28 20:46:11,905 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt [2023-11-28 20:46:11,905 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr79REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:46:11,905 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:46:11,905 INFO L85 PathProgramCache]: Analyzing trace with hash 1943810241, now seen corresponding path program 1 times [2023-11-28 20:46:11,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:46:11,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1426258484] [2023-11-28 20:46:11,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:11,906 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:46:11,906 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:46:11,907 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:46:11,908 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Waiting until timeout for monitored process [2023-11-28 20:46:12,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:46:12,890 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 113 conjunts are in the unsatisfiable core [2023-11-28 20:46:12,900 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:46:12,904 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:46:13,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:46:13,148 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:46:13,149 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:46:13,199 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:46:13,213 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:46:13,374 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-28 20:46:13,381 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:46:14,507 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:46:14,508 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:46:14,526 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:46:14,707 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:46:14,707 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:46:14,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:46:14,866 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:46:14,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:46:14,883 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:46:14,897 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-28 20:46:14,903 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:46:14,954 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:46:14,954 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:46:15,179 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6528 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6528) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd .cse1 (_ bv12 32))))))) is different from false [2023-11-28 20:46:15,226 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6528 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_6528) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-28 20:46:15,352 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6526 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6527 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6526) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6527) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6526 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6527 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6528 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6527))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_6526) .cse2 v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_6528) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-28 20:46:15,569 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6526 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6527 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_6526) (select (select (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_6527) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6526 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6527 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6528 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_6527))) (let ((.cse3 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_6526) .cse3 v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse4 .cse3 v_ArrVal_6528) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))))) is different from false [2023-11-28 20:46:17,251 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6526 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6527 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6621))) (let ((.cse1 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6620) .cse1 v_ArrVal_6526) (select (select (store .cse2 .cse1 v_ArrVal_6527) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_6529))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (_ bv8 32) .cse0) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_6529 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6526 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6527 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6528 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6620 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_6621 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse7 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6621))) (let ((.cse4 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse6 (store .cse7 .cse4 v_ArrVal_6527))) (let ((.cse5 (select (select .cse6 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_6620) .cse4 v_ArrVal_6526) .cse5 v_ArrVal_6529) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse6 .cse5 v_ArrVal_6528) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))))) is different from false [2023-11-28 20:46:17,266 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:46:17,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1426258484] [2023-11-28 20:46:17,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1426258484] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:46:17,266 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1239636979] [2023-11-28 20:46:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:46:17,266 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:46:17,266 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:46:17,267 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:46:17,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Waiting until timeout for monitored process [2023-11-28 20:46:44,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:46:44,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 818 conjuncts, 118 conjunts are in the unsatisfiable core [2023-11-28 20:46:44,588 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:46:44,594 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:46:45,116 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:46:45,117 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:46:45,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:46:45,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:46:45,254 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:46:45,512 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2023-11-28 20:46:45,519 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-28 20:46:46,565 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:46:46,566 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-28 20:46:46,582 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-28 20:46:46,823 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 39 [2023-11-28 20:46:46,831 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-28 20:46:47,014 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:46:47,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 45 [2023-11-28 20:46:47,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 11 [2023-11-28 20:46:47,051 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2023-11-28 20:46:47,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2023-11-28 20:46:47,069 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:46:47,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:46:47,145 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7093 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7093) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd (_ bv8 32) .cse1) (bvadd .cse1 (_ bv12 32))))))) is different from false [2023-11-28 20:46:47,193 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse1 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (and (forall ((v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd .cse0 (_ bv8 32)) (bvadd .cse0 (_ bv12 32))))) (forall ((v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7093 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse1 v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse1 v_ArrVal_7093) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))))))) is different from false [2023-11-28 20:46:47,252 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base|)) (.cse4 (bvadd |c_ULTIMATE.start_main_#t~mem35#1.offset| (_ bv16 32))) (.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7091 (_ BitVec 32)) (v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7093 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7089 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| (store .cse3 .cse4 v_ArrVal_7091)))) (let ((.cse0 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7089) .cse0 v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv12 32)) (select |c_#length| (select (select (store .cse2 .cse0 v_ArrVal_7093) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) (forall ((v_ArrVal_7091 (_ BitVec 32)) (v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7089 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7089) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| (store .cse3 .cse4 v_ArrVal_7091)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (_ bv8 32) .cse5) (bvadd .cse5 (_ bv12 32))))))) is different from false [2023-11-28 20:46:47,347 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse4 (select |c_#memory_$Pointer$#4.base| .cse0)) (.cse5 (bvadd (_ bv16 32) (select (select |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))) (and (forall ((v_ArrVal_7091 (_ BitVec 32)) (v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7093 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7089 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#4.base| .cse0 (store .cse4 .cse5 v_ArrVal_7091)))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_7089) .cse1 v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv12 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_7093) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))) (forall ((v_ArrVal_7091 (_ BitVec 32)) (v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7089 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (store (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_7089) (select (select (store |c_#memory_$Pointer$#4.base| .cse0 (store .cse4 .cse5 v_ArrVal_7091)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv8 32) .cse6) (bvadd .cse6 (_ bv12 32))))))))) is different from false [2023-11-28 20:46:49,049 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_7184 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7091 (_ BitVec 32)) (v_ArrVal_7185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7093 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7089 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_7184))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (.cse0 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_7185))) (let ((.cse4 (store .cse5 .cse1 (store (select .cse5 .cse1) (bvadd (_ bv16 32) (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) v_ArrVal_7091)))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store .cse0 .cse1 v_ArrVal_7089) .cse2 v_ArrVal_7092) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv12 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_7093) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_7184 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7091 (_ BitVec 32)) (v_ArrVal_7185 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7092 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7089 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse9 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_7184))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) (.cse7 (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_7185))) (store (store .cse7 .cse8 v_ArrVal_7089) (select (select (store .cse9 .cse8 (store (select .cse9 .cse8) (bvadd (_ bv16 32) (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)) v_ArrVal_7091)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_7092))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse6 (_ bv8 32)) (bvadd .cse6 (_ bv12 32))))))) is different from false [2023-11-28 20:46:49,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1239636979] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:46:49,129 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:46:49,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2023-11-28 20:46:49,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42368056] [2023-11-28 20:46:49,129 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:46:49,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2023-11-28 20:46:49,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:46:49,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2023-11-28 20:46:49,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=292, Unknown=10, NotChecked=430, Total=812 [2023-11-28 20:46:49,130 INFO L87 Difference]: Start difference. First operand 1455 states and 1621 transitions. Second operand has 17 states, 14 states have (on average 8.571428571428571) internal successors, (120), 17 states have internal predecessors, (120), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:47:15,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:47:15,099 INFO L93 Difference]: Finished difference Result 2204 states and 2401 transitions. [2023-11-28 20:47:15,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-11-28 20:47:15,099 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 14 states have (on average 8.571428571428571) internal successors, (120), 17 states have internal predecessors, (120), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 107 [2023-11-28 20:47:15,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:47:15,103 INFO L225 Difference]: With dead ends: 2204 [2023-11-28 20:47:15,103 INFO L226 Difference]: Without dead ends: 2204 [2023-11-28 20:47:15,104 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 198 SyntacticMatches, 3 SemanticMatches, 33 ConstructedPredicates, 10 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=133, Invalid=497, Unknown=10, NotChecked=550, Total=1190 [2023-11-28 20:47:15,104 INFO L413 NwaCegarLoop]: 705 mSDtfsCounter, 1527 mSDsluCounter, 3131 mSDsCounter, 0 mSdLazyCounter, 7115 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1545 SdHoareTripleChecker+Valid, 3836 SdHoareTripleChecker+Invalid, 7132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 7115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 25.4s IncrementalHoareTripleChecker+Time [2023-11-28 20:47:15,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1545 Valid, 3836 Invalid, 7132 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [17 Valid, 7115 Invalid, 0 Unknown, 0 Unchecked, 25.4s Time] [2023-11-28 20:47:15,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2023-11-28 20:47:15,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1454. [2023-11-28 20:47:15,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1454 states, 857 states have (on average 1.8599766627771295) internal successors, (1594), 1442 states have internal predecessors, (1594), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:47:15,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1454 states to 1454 states and 1620 transitions. [2023-11-28 20:47:15,133 INFO L78 Accepts]: Start accepts. Automaton has 1454 states and 1620 transitions. Word has length 107 [2023-11-28 20:47:15,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:47:15,133 INFO L495 AbstractCegarLoop]: Abstraction has 1454 states and 1620 transitions. [2023-11-28 20:47:15,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 14 states have (on average 8.571428571428571) internal successors, (120), 17 states have internal predecessors, (120), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:47:15,134 INFO L276 IsEmpty]: Start isEmpty. Operand 1454 states and 1620 transitions. [2023-11-28 20:47:15,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 20:47:15,134 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:47:15,134 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:47:15,161 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (31)] Ended with exit code 0 [2023-11-28 20:47:15,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (30)] Ended with exit code 0 [2023-11-28 20:47:15,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:47:15,535 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr82REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:47:15,536 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:47:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash -306899572, now seen corresponding path program 1 times [2023-11-28 20:47:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:47:15,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1975081016] [2023-11-28 20:47:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:47:15,536 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:47:15,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:47:15,537 INFO L229 MonitoredProcess]: Starting monitored process 32 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:47:15,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Waiting until timeout for monitored process [2023-11-28 20:47:16,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:47:16,919 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 63 conjunts are in the unsatisfiable core [2023-11-28 20:47:16,924 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:47:16,929 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:47:17,157 INFO L349 Elim1Store]: treesize reduction 22, result has 35.3 percent of original size [2023-11-28 20:47:17,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 27 [2023-11-28 20:47:17,212 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:47:17,337 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 12 [2023-11-28 20:47:18,577 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:47:18,577 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:47:18,741 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:47:18,742 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:47:18,860 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:47:18,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:47:18,991 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:47:18,991 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 44 treesize of output 43 [2023-11-28 20:47:19,014 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 15 [2023-11-28 20:47:19,075 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:47:19,075 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:47:23,257 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) v_ArrVal_7625) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))))) is different from false [2023-11-28 20:47:23,276 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7624 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_7624))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:47:23,295 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7624 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7624))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:47:23,316 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7624 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7623 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_7623))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7624)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:47:23,339 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7624 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7623 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7623))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7624)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:47:23,832 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_7671 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7624 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7623 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (_ bv1 1) (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_7671))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7623)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7624)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))) is different from false [2023-11-28 20:47:23,837 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:47:23,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1975081016] [2023-11-28 20:47:23,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1975081016] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:47:23,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1665259459] [2023-11-28 20:47:23,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:47:23,838 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:47:23,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:47:23,838 INFO L229 MonitoredProcess]: Starting monitored process 33 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:47:23,839 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (33)] Waiting until timeout for monitored process [2023-11-28 20:47:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:47:50,078 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 66 conjunts are in the unsatisfiable core [2023-11-28 20:47:50,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:47:50,097 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:47:50,560 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:47:50,560 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:47:50,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-11-28 20:47:51,631 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:47:51,631 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:47:51,861 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:47:51,861 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:47:52,009 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:47:52,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:47:52,166 INFO L349 Elim1Store]: treesize reduction 19, result has 20.8 percent of original size [2023-11-28 20:47:52,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 36 treesize of output 35 [2023-11-28 20:47:52,187 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2023-11-28 20:47:52,193 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:47:52,193 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:47:52,667 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8109))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-28 20:47:52,686 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32)))) (= (_ bv0 1) (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8109))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)))) is different from false [2023-11-28 20:47:52,708 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8108 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8108))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8109)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-28 20:47:52,732 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8108 (Array (_ BitVec 32) (_ BitVec 32)))) (= (bvadd (select |c_#valid| (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (store |c_#memory_$Pointer$#4.base| (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8108))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8109)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (_ bv1 1)) (_ bv0 1))) is different from false [2023-11-28 20:47:53,288 INFO L349 Elim1Store]: treesize reduction 7, result has 93.2 percent of original size [2023-11-28 20:47:53,289 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 109 treesize of output 108 [2023-11-28 20:47:53,307 WARN L854 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_8109 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_7625 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8108 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8156 (Array (_ BitVec 32) (_ BitVec 32)))) (= (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (select (select (let ((.cse0 (let ((.cse2 (let ((.cse3 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_8156))) (store .cse3 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8108)))) (store .cse2 (select (select .cse2 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8109)))) (store .cse0 (select (select .cse0 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_7625)) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)) |c_ULTIMATE.start_main_#t~mem33#1.base|)) is different from false [2023-11-28 20:47:53,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1665259459] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:47:53,312 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-28 20:47:53,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 13] total 23 [2023-11-28 20:47:53,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1771642617] [2023-11-28 20:47:53,312 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-28 20:47:53,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2023-11-28 20:47:53,312 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2023-11-28 20:47:53,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2023-11-28 20:47:53,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=576, Unknown=12, NotChecked=638, Total=1332 [2023-11-28 20:47:53,313 INFO L87 Difference]: Start difference. First operand 1454 states and 1620 transitions. Second operand has 24 states, 21 states have (on average 6.142857142857143) internal successors, (129), 23 states have internal predecessors, (129), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:48:23,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-28 20:48:23,191 INFO L93 Difference]: Finished difference Result 2204 states and 2403 transitions. [2023-11-28 20:48:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-11-28 20:48:23,191 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 21 states have (on average 6.142857142857143) internal successors, (129), 23 states have internal predecessors, (129), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 109 [2023-11-28 20:48:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-28 20:48:23,196 INFO L225 Difference]: With dead ends: 2204 [2023-11-28 20:48:23,196 INFO L226 Difference]: Without dead ends: 2204 [2023-11-28 20:48:23,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 199 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 11 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=188, Invalid=1034, Unknown=12, NotChecked=836, Total=2070 [2023-11-28 20:48:23,197 INFO L413 NwaCegarLoop]: 692 mSDtfsCounter, 1543 mSDsluCounter, 8690 mSDsCounter, 0 mSdLazyCounter, 10696 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1564 SdHoareTripleChecker+Valid, 9382 SdHoareTripleChecker+Invalid, 10736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 10696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.0s IncrementalHoareTripleChecker+Time [2023-11-28 20:48:23,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1564 Valid, 9382 Invalid, 10736 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [40 Valid, 10696 Invalid, 0 Unknown, 0 Unchecked, 29.0s Time] [2023-11-28 20:48:23,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2204 states. [2023-11-28 20:48:23,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2204 to 1453. [2023-11-28 20:48:23,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1453 states, 857 states have (on average 1.8588098016336057) internal successors, (1593), 1441 states have internal predecessors, (1593), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 7 states have call predecessors, (13), 11 states have call successors, (13) [2023-11-28 20:48:23,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1453 states to 1453 states and 1619 transitions. [2023-11-28 20:48:23,217 INFO L78 Accepts]: Start accepts. Automaton has 1453 states and 1619 transitions. Word has length 109 [2023-11-28 20:48:23,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-28 20:48:23,217 INFO L495 AbstractCegarLoop]: Abstraction has 1453 states and 1619 transitions. [2023-11-28 20:48:23,217 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 21 states have (on average 6.142857142857143) internal successors, (129), 23 states have internal predecessors, (129), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-11-28 20:48:23,217 INFO L276 IsEmpty]: Start isEmpty. Operand 1453 states and 1619 transitions. [2023-11-28 20:48:23,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2023-11-28 20:48:23,218 INFO L187 NwaCegarLoop]: Found error trace [2023-11-28 20:48:23,218 INFO L195 NwaCegarLoop]: trace histogram [44, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-28 20:48:23,247 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (33)] Forceful destruction successful, exit code 0 [2023-11-28 20:48:23,428 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (32)] Ended with exit code 0 [2023-11-28 20:48:23,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt,32 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:48:23,619 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr83REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [reach_errorErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 830 more)] === [2023-11-28 20:48:23,619 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-28 20:48:23,619 INFO L85 PathProgramCache]: Analyzing trace with hash -306899571, now seen corresponding path program 1 times [2023-11-28 20:48:23,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2023-11-28 20:48:23,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [862297623] [2023-11-28 20:48:23,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:48:23,620 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2023-11-28 20:48:23,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat [2023-11-28 20:48:23,621 INFO L229 MonitoredProcess]: Starting monitored process 34 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2023-11-28 20:48:23,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (34)] Waiting until timeout for monitored process [2023-11-28 20:48:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:48:24,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 116 conjunts are in the unsatisfiable core [2023-11-28 20:48:24,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:48:24,735 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:48:24,920 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:48:24,945 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:48:24,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:48:24,989 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2023-11-28 20:48:25,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2023-11-28 20:48:25,130 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 10 [2023-11-28 20:48:25,136 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:48:26,079 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:48:26,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:48:26,090 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:48:26,235 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:48:26,236 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:48:26,251 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:48:26,369 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:48:26,369 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:48:26,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:48:26,504 INFO L349 Elim1Store]: treesize reduction 21, result has 19.2 percent of original size [2023-11-28 20:48:26,504 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 62 treesize of output 57 [2023-11-28 20:48:26,516 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 13 [2023-11-28 20:48:26,535 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 13 [2023-11-28 20:48:26,544 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 3 [2023-11-28 20:48:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 946 trivial. 0 not checked. [2023-11-28 20:48:26,590 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-28 20:48:26,787 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse0 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0)))) (forall ((v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse1 (select (select (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem37#1.base| v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse0))) (bvule (bvadd .cse1 (_ bv20 32)) (bvadd .cse1 (_ bv24 32))))))) is different from false [2023-11-28 20:48:26,830 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (and (forall ((v_ArrVal_8644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32)))) (bvule (bvadd (select (select (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_8644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))) (forall ((v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse2 (select (select (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse2 (_ bv20 32)) (bvadd .cse2 (_ bv24 32)))))))) is different from false [2023-11-28 20:48:26,943 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse1 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8641) (select (select (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8642) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse3 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8642))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse1))) (bvule (bvadd (select (select (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem36#1.base| v_ArrVal_8641) .cse2 v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse2 v_ArrVal_8644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse1)))))))) is different from false [2023-11-28 20:48:27,573 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse2 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8640 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse4 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8639))) (let ((.cse0 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (let ((.cse3 (store .cse4 .cse0 v_ArrVal_8642))) (let ((.cse1 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8640) .cse0 v_ArrVal_8641) .cse1 v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) (_ bv24 32)) (select |c_#length| (select (select (store .cse3 .cse1 v_ArrVal_8644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2)))))))) (forall ((v_ArrVal_8639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8640 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (select (select (let ((.cse7 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8639))) (let ((.cse6 (select (select .cse7 |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem35#1.base| v_ArrVal_8640) .cse6 v_ArrVal_8641) (select (select (store .cse7 .cse6 v_ArrVal_8642) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2) v_ArrVal_8643))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse2))) (bvule (bvadd (_ bv20 32) .cse5) (bvadd .cse5 (_ bv24 32))))))) is different from false [2023-11-28 20:48:27,714 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse3 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (let ((.cse0 (select (select |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (and (forall ((v_ArrVal_8639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8640 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse5 (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_8639))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (let ((.cse4 (store .cse5 .cse1 v_ArrVal_8642))) (let ((.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd (select (select (store (store (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_8640) .cse1 v_ArrVal_8641) .cse2 v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) (_ bv24 32)) (select |c_#length| (select (select (store .cse4 .cse2 v_ArrVal_8644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3)))))))) (forall ((v_ArrVal_8639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8640 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse6 (select (select (let ((.cse8 (store |c_#memory_$Pointer$#4.base| .cse0 v_ArrVal_8639))) (let ((.cse7 (select (select .cse8 |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (store (store (store |c_#memory_$Pointer$#4.offset| .cse0 v_ArrVal_8640) .cse7 v_ArrVal_8641) (select (select (store .cse8 .cse7 v_ArrVal_8642) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3) v_ArrVal_8643))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse3))) (bvule (bvadd .cse6 (_ bv20 32)) (bvadd .cse6 (_ bv24 32)))))))) is different from false [2023-11-28 20:48:33,543 WARN L854 $PredicateComparison]: unable to prove that (let ((.cse4 (bvadd (_ bv8 32) |c_ULTIMATE.start_main_~user~0#1.offset|))) (and (forall ((v_ArrVal_8639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8735 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8640 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse0 (select (select (let ((.cse5 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_8736))) (let ((.cse1 (select (select .cse5 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse3 (store .cse5 .cse1 v_ArrVal_8639))) (let ((.cse2 (select (select .cse3 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (store (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_8735) .cse1 v_ArrVal_8640) .cse2 v_ArrVal_8641) (select (select (store .cse3 .cse2 v_ArrVal_8642) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) v_ArrVal_8643))))) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd .cse0 (_ bv20 32)) (bvadd .cse0 (_ bv24 32))))) (forall ((v_ArrVal_8639 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8736 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8735 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8644 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8643 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8642 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8641 (Array (_ BitVec 32) (_ BitVec 32))) (v_ArrVal_8640 (Array (_ BitVec 32) (_ BitVec 32)))) (let ((.cse11 (store |c_#memory_$Pointer$#4.base| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_8736))) (let ((.cse6 (select (select .cse11 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse10 (store .cse11 .cse6 v_ArrVal_8639))) (let ((.cse7 (select (select .cse10 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (let ((.cse9 (store .cse10 .cse7 v_ArrVal_8642))) (let ((.cse8 (select (select .cse9 |c_ULTIMATE.start_main_~user~0#1.base|) .cse4))) (bvule (bvadd (select (select (store (store (store (store |c_#memory_$Pointer$#4.offset| |c_ULTIMATE.start_main_#t~mem33#1.base| v_ArrVal_8735) .cse6 v_ArrVal_8640) .cse7 v_ArrVal_8641) .cse8 v_ArrVal_8643) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4) (_ bv24 32)) (select |c_#length| (select (select (store .cse9 .cse8 v_ArrVal_8644) |c_ULTIMATE.start_main_~user~0#1.base|) .cse4)))))))))))) is different from false [2023-11-28 20:48:33,579 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2023-11-28 20:48:33,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [862297623] [2023-11-28 20:48:33,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [862297623] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-28 20:48:33,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1657218912] [2023-11-28 20:48:33,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-28 20:48:33,580 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2023-11-28 20:48:33,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 [2023-11-28 20:48:33,581 INFO L229 MonitoredProcess]: Starting monitored process 35 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2023-11-28 20:48:33,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d2becc2b-b402-49ec-bbc6-11b6889cccdf/bin/uautomizer-verify-BQ2R08f2Ya/cvc4 --incremental --print-success --lang smt (35)] Waiting until timeout for monitored process [2023-11-28 20:53:10,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-28 20:53:10,438 INFO L262 TraceCheckSpWp]: Trace formula consists of 846 conjuncts, 118 conjunts are in the unsatisfiable core [2023-11-28 20:53:10,449 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-28 20:53:10,498 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 7 [2023-11-28 20:53:13,156 INFO L349 Elim1Store]: treesize reduction 6, result has 40.0 percent of original size [2023-11-28 20:53:13,157 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2023-11-28 20:53:13,207 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-11-28 20:53:13,702 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-11-28 20:53:13,804 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1